Hi Shereif, 

While we look at this in some more detail, can you do me a favor and run DKE without interpolating the resulting parametric maps and see if that fixed the problem? If you are using the GUI the interpolation option is a checkbox on the second panel, or if you are using the command line just change "map_interpolation_method.flag= 1" to "map_interpolation_method.flag = 0" in your dkeparameters.dat file.  We would recommend to have this option turned off (even though by default it's turned on (oops)).

Thanks, 
Emilie